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Re: futrcash post# 871

Saturday, 11/05/2022 2:42:08 PM

Saturday, November 05, 2022 2:42:08 PM

Post# of 923
Page 22 of PDF or Page 14 on the data sheet..
PDF dated october 2022

The last page has web addesses if you click on it in the PDF it takes you there.

Schlumberger has been permitted to operate its Clayton Valley Pilot Plant Project – a Li
brine extraction and chemical processing facility – close to the existing Silver Peak Li brine
operated by Albemarle in Nevada (State of Nevada, 2021). The company’s plan is to produce
65.3 tons of Li-based chemicals over an anticipated duration of 18 months, based on a
technology approach described to the State of Nevada (State of Nevada, 2021). Initially, pumped
brine will be reacted with dilute HCl, after which the modified brine will be polished by
removing several ions from it to make it Li-rich. Subsequently, the brine will be passed through
an ion exchange system, with magnesium and calcium ions replaced by sodium ions, and the
system will be degenerated periodically using dilute sodium hydroxide (NaOH) and HCl.
Additional ions will be removed to obtain the final Li-concentrate, which will be treated using
RO to obtain concentrated LiCl. This LiCl will be reacted with sodium carbonate (Na2CO3) to
obtain lithium carbonate, with a secondary step enabling its conversion to LiOH-H2O. Apart
from Li-based chemicals, this process schematic will also produce limestone (CaCO3). Overall,
the key focus of this project seems to be about demonstrating Schlumberger’s DLE capabilities
and highlighting its ability to provide technological solutions in this domain for larger companies
interested in Li-extraction via this technology